feat: admin utilities - rerender all pages

server/graph/schemas/page.graphql

@@ -106,6 +106,10 @@ type PageMutation {
   ): PageMigrationResponse @auth(requires: ["manage:system"])
 
   rebuildTree: DefaultResponse @auth(requires: ["manage:system"])
+
+  render(
+    id: Int!
+  ): DefaultResponse @auth(requires: ["manage:system"])
 }
 
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